Let's divide 81751922 by 489
We're looking to find how many times 489 goes into 81751922.

Step 1:
If we divide 8 by 489, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 489

Let's proceed to step 2:
If we divide 81 by 489, we get 0 and a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Include the next digit (7) from the dividend after 81, then repeat: 817 / 489

Step 3:
The number 489 fits into 817 1 times, leaving a remainder of 328.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 489 from 817 to get 328.
Bring next digit (5) of the dividend behind the 328 and repeat the process: 3285 / 489

Going ahead to step 4:
489 can be fit into 3285 6 times, resulting in a remainder of 351.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
Deduct 2934 from 3285 and we're left with 351.
Bring next digit (1) of the dividend behind the 351 and repeat the process: 3511 / 489

Going ahead to step 5:
When dividing 3511 by 489, we get 7 with a remainder of 88.
The number 7 becomes the next digit in our result. 
Result so far: 167.0
The remainder is 88 after subtracting 3423 from 3511.
Append the next digit (9) from the dividend to 88 and continue with: 889 / 489

Step 6:
The number 489 fits into 889 1 times, leaving a remainder of 400.
Write down 1 as next digit of the result. 
Result so far: 1671.0
Subtracting 489 from 889 leaves us with 400.
Grab the next digit (2) from the dividend, add it to 400, then carry on: 4002 / 489

Step 7:
489 can be fit into 4002 8 times, resulting in a remainder of 90.
Put 8 as the next digit of the answer. 
Result so far: 16718.0
Deduct 3912 from 4002 and we're left with 90.
Grab the next digit (2) from the dividend, add it to 90, then carry on: 902 / 489

Let's proceed to step 8:
902 divided by 489 is 1 with a remainder of 413.
Record the quotient 1 as the next digit in the result. 
Result so far: 167181.0
If we take 489 away from 902, we end up with 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

On to step 9:
The number 489 fits into 4130 8 times, leaving a remainder of 218.
The next digit of our result is 8. 
Result so far: 167181.8
Subtract 3912 from 4130 to get 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Step 10:
The number 489 fits into 2180 4 times, leaving a remainder of 224.
Put 4 as the next digit of the answer. 
Result so far: 167181.84
If we take 1956 away from 2180, we end up with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

On to step 11:
489 can be fit into 2240 4 times, resulting in a remainder of 284.
The number 4 becomes the next digit in our result. 
Result so far: 167181.844
The remainder is 284 after subtracting 1956 from 2240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

After the division, we end up with 167181.844 and a remainder of 0.0284.